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Haematopoietic stem and progenitor cells are present in healthy gingiva tissue

ABSTRACT: Haematopoietic stem and progenitor cells are present in healthy gingiva tissue

PROVIDER: PRJEB42704 | ENA |

REPOSITORIES: ENA

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Haematopoietic stem and progenitor cells are present in healthy gingiva tissue

Project description:Haematopoietic stem cells reside in the bone marrow where they generate the effector cells that drive immune responses. However, in response to inflammation some haematopoietic stem and progenitor cells (HSPC) are recruited to tissue sites and undergo extramedullary haematopoiesis. Contrasting this paradigm here we show, with single cell sequencing, residence and differentiation of HSPC in healthy gingiva, a key oral barrier, in the absence of overt inflammation.

2021-02-23 | E-MTAB-10050 | biostudies-arrayexpress

Hematopoietic stem and progenitor cells are present in healthy gingiva tissue.

Project description:Hematopoietic stem cells reside in the bone marrow, where they generate the effector cells that drive immune responses. However, in response to inflammation, some hematopoietic stem and progenitor cells (HSPCs) are recruited to tissue sites and undergo extramedullary hematopoiesis. Contrasting with this paradigm, here we show residence and differentiation of HSPCs in healthy gingiva, a key oral barrier in the absence of overt inflammation. We initially defined a population of gingiva monocytes that could be locally maintained; we subsequently identified not only monocyte progenitors but also diverse HSPCs within the gingiva that could give rise to multiple myeloid lineages. Gingiva HSPCs possessed similar differentiation potentials, reconstitution capabilities, and heterogeneity to bone marrow HSPCs. However, gingival HSPCs responded differently to inflammatory insults, responding to oral but not systemic inflammation. Combined, we highlight a novel pathway of myeloid cell development at a healthy barrier, defining a gingiva-specific HSPC network that supports generation of a proportion of the innate immune cells that police this barrier.

| S-EPMC7923695 | biostudies-literature

Single cell transcriptomic profiling of murine adult healthy gingiva

Project description:Single cell transcriptomic profiling of murine adult healthy gingiva

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Transcriptional profiling of CML and normal, stem and progenitor haematopoietic cells.

Project description:Transcriptional profiling of four cell populations to understanding chronic myeloid leukaemia in humans. The populations are normal haematopoietic stem cells (HSC), normal progenitor cells (HPC), CML stem cells (LSC) and CML progenitor cells (LPC).

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Transcription profiling of human male and femal gingiva

Project description:All experiment was done according to the Affymetrix manufacturerâs protocol. The resulting HGF gingiva expression profile(Hereditary gingival fibromatosis patient Gingiva replicate1 and replicate 2)was compared to normal gingiva control(Normal Gingiva replicate1 and replicate2). The data were collected and analyzed by GCOS 1.2 and GeneSpring 7.2 1-way T test. Experiment Overall Design: Hereditary gingival fibromatosis patient Gingiva (experimental) and Normal Gingiva (control) were used. N1 and P1 are gingiva tissue from female individuals while N2 and P2 are from male ones.

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Healing human gingiva

Project description:Healing human gingiva

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Differential gene expression in erythroid progenitor cells from ?-thalassaemia patients and healthy controls [BRB-ArrayTools analysis]

Project description:This study uses microarray technology to examine the erythroid progenitor mRNA of patients with transfusion dependent ?-thalassaemia and compare it to erythroid progenitor mRNA from healthy controls. We observed no statistical difference in gene expression between the groups following 7 days in culture. However, following 14 days in culture we observed differential expression of 277 genes. Haematopoietic cells from the peripheral blood of 6 ?-thalassaemia patients and 6 healthy controls was grown in semi-solid media. After 7 and 14 days in culture cells of erythroid origin were isolated. Total RNA was isolated from these for microarray gene expression analysis

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Project description:Our focus is to investigate the regulatory networks which are involved in the development and subsequent differentiation of haematopoietic stem and progenitor cells. The aim is to identify new targets and co-operative binding partners of established stem cell transcription factors as well as identifiying new important transcriptional regulators.

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Differential gene expression in erythroid progenitor cells from β-thalassaemia patients and healthy controls [Bioconductor/limma R analysis]

Project description:This study uses microarray technology to examine the erythroid progenitor mRNA of patients with transfusion dependent β-thalassaemia and compare it to erythroid progenitor mRNA from healthy controls. We observed no statistical difference in gene expression between the groups following 7 days in culture. However, following 14 days in culture we observed differential expression of 161 genes. Haematopoietic cells from the peripheral blood of 6 β-thalassaemia patients and 6 healthy controls was grown in semi-solid media. After 7 and 14 days in culture cells of erythroid origin were isolated. Total RNA was isolated from these for microarray gene expression analysis

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